WILLIAM E MALONEY M.D.
NPI 1609810548
Emergency Medicine in Milwaukee, WI
About William E Maloney M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WILLIAM E MALONEY M.D. (NPI 1609810548) is an individual emergency medicine provider in Milwaukee, Wisconsin, licensed in Wisconsin (37105-020) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Osf Saint Elizabeth Mdl Ctr, and maintains a secondary practice location in Wilmette.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 6
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
William E Maloney M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
3Medicare enrollment records show William Maloney reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Libertyville, IL 60048
- Reassigned Medicare billing, Illinois enrollment
- 982 clinicians in this Medicare group
Peoria, IL 61615
- Reassigned Medicare billing, Illinois enrollment
- 2,944 clinicians in this Medicare group
Litchfield, IL 62056
- Reassigned Medicare billing, Illinois enrollment
- 60 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 6
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Osf Saint Elizabeth Mdl Ctr
Acute Care Hospitals · Ottawa, ILSt Francis Hospital
Critical Access Hospitals · Litchfield, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 53202 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is William Maloney's NPI number?
The NPI number for William Maloney is 1609810548. It was assigned to this individual provider in the NPPES registry on June 15, 2006.
Where is William Maloney located?
William Maloney practices at 111 E Wisconsin Ave, Milwaukee, WI 53202. The listed phone number is (414) 290-6720.
What is William Maloney's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is William Maloney enrolled in Medicare?
Yes. William Maloney is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for William Maloney's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Maloney reassigns Medicare benefits to 3 organizations: Cepamerica Illinois LLP (Libertyville, IL), Osf Multi-Specialty Group (Peoria, IL) and St Francis Hospital Of The Hospital Sisters Of The Third Order Of St F (Litchfield, IL). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for William Maloney's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is William Maloney affiliated with any hospitals?
According to CMS data, William Maloney is affiliated with Osf Saint Elizabeth Mdl Ctr and St Francis Hospital.
When was this NPI record last updated?
The NPPES record for William Maloney was last updated on December 22, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# William E Maloney, M.D. · NPI 1609810548
Emergency Medicine physician in Milwaukee, Wisconsin. Individual provider, active in the CMS NPPES registry since June 15, 2006.
## Identity
- **NPI:** 1609810548 (Entity type: Individual)
- **Enumerated:** June 15, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 37105-020 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 111 E WISCONSIN AVE, Milwaukee, WI 53202-4815
- **Phone:** (414) 290-6720 · **Fax:** (414) 290-6755
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Cepamerica Illinois LLP (NPI 1740906577, Libertyville, IL); Osf Multi-Specialty Group (NPI 1154908929, Peoria, IL); St Francis Hospital Of The Hospital Sisters Of The Third Order Of St F (NPI 1326057076, Litchfield, IL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Illinois College Of Med, class of 1988
## Record status
- **NPPES last updated:** December 22, 2021
- **Other identifiers:** Other 930064394 (WI); Medicaid 33269400 (WI); Medicaid 036081099 (IL); and 3 more
---
Source: [NPI Profile](https://npiprofile.com/npi/1609810548) · Data from the CMS NPPES public registry.